Regarding gasket standards

2018-04-23View Original

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HG/T20606 PN16 flat flanges (FF) in three sizes: 24 inches, 26 inches, and 28 inches. The gaskets used are made of polytetrafluoroethylene. I checked the standards and found no specification for 26-inch flanges; HG/T20627 does mention 26-inch flanges, but the gaskets available for flat flanges are only up to 24 inches in size. Please help

Reply #22018-04-25

Please refer to page 14 of standard HG/T20592, Table 3.2.2 continued: WN type, IF type flanges with FF sealing surfaces, PN16, DN2000

Reply #32018-04-28

Yes, there is. HG/T20592-2009, Page 126. Check the standards by yourself; DN2000 PN16

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Regarding gasket standards

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